Não informado. (1975). Natural History Research Center Publication. University of Baghdad.
Chicagoスタイル(17版)引用形式Não informado. Natural History Research Center Publication. Baghdad: University of Baghdad, 1975.
MLA(8版)引用形式Não informado. Natural History Research Center Publication. University of Baghdad, 1975.
警告: この引用は必ずしも正確ではありません.